Carriage-bow



J1 L. SMITH.

V GARRIAGE BOW N 0. 268,437. Patented Dec. 5., 1882.

INVENTOR (Kg A florney a I I 0,100/1,111,

. wlr/vfssm my WWW UNITED STATES PATENT OFFICE.

JAMES LxSidITH, on ASHTABULA', OHIO.

"CARRIAGE-BOW.

SPECIFICATION forming part of Letters Patent No. 268,437, dated December 5,1882,

Application filed February '25. 1882.

To all whom it may concern Be it known thatI, JAMES L. SMITH, of Ashtabula, in the county of Ashtabula and State of Ohio, have invented certain new and useful Improvements in Side Pieces for Carriage- Bows; and I do hereby declare the following to he a lull, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same. a I i My invention relates to an improvement in carriage-bows, the object being to provide an improved tubular side piece therefor which shall combine simplicity and cheapness of construction with durability in use and great strength.

With these ends in view my invention consists in certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

' In the accompanying drawings, Figure 1 is a view in horizontal cross-section of a side piece constructed in accordance with my invention. Fig. 2 is a view in cross-section thereof; and Figs. 3, 4, and 5 are views in crosssection of modified forms which my improved side piece may assume.

A represents the tube of a side piece made in accordance with my invention. It is formed in any desired manner of sheet-iron, sheet-steel, or anyother suitable sheet metal. In cross-section it may be oval or round, while in horizon tal section it is preferably'made with an increasing taper toward its upper end. The edges B of the metal are brought together to complete the tube, and then extended in contact thereiiito, for the purpose of ,givin g it additional strength, the parallel sides just described being brazed, soldered, sweated, or riveted together,-that method of uniting them being chosen which is found most desirable in pointof cheapness and strength. After the tube is thus completed a wood tiller, 0, of appropriate form, is driven into it, the said filler being slotted throughout its length, as at D, to receive inwardly-projecting and united edges B. Spac'esshould be left at the upper ends of the tubes to form sockets for the reception of the curved portions of the carriage-bows,

while similar spaces, F, should be left at the lower ends of the tubes to constitute sockets (No model.)

for the receptionof the joints upon which the whole carriage-bow structure. is moved.

The tubular side' pieces above described 7 may be finished by coating them with japan,

tube on each side of the said united edges. In Fig. 4 of the drawings a form of tube is shown in which the inwardly-extending edges of the metal are arrangedto be of unequal length, the longer edge being curved around the extreme end of the shorter edge, as shown at G. In this way the strength of the tube is augmented, this form of tube being employed when greater stiffness is required than can be given to the form of tube shown in the firs two figures of the drawings.

Fig. 5 of the drawings shows still another modified form of tubular side piece, wherein the edges of the metal are brought together and inwardly extended in contact into the tube. These extensions are designed to give additional strength or stiffness to the tubes, and their value in this capacity will increase with their length. They are secured together bya U-shaped clamp, which is slipped or driven over them. This clamp imparts additional stiffness to the tube, and also unites the said edges, which may or may not be brazed or otherwise joined.

If the U-shaped clamp is depended on alone to hold the extended edges of the tube together, the ends of leather or other flexible covering material may, after being passed around the tube, be inserted between the inwardly-extending edges of the metal, and thus be held in position.

Tubes constructed as above described are not necessarily limited to use as side pieces I am aware that'the edges of sheet-metal side pieces have been bent inwardly and locked together by a key, and that the wood fillers inserted in side pieces so formed have been grooved to receive said keys.

I would also have itunderstood that I do not limit myself to the exact construction shown and described, but hold myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

I am aware that it is not broadly new to bend the edges of a tube inward and lock them together by a key.

Having fully described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. A side piece for carriage-bows, made of a single piece of sheet metal bent in tubular form, the edges of the metal being brought together and extended in contact into or beyond the center of the tube for the purpose of forming a compound strip or structureto strengthen it, said parallel edges being brazed, riveted, or secured together in an equivalent manner, substantially as and for the purpose set forth.

2. A side piece for carriage-bows, made of a single piece of sheet metal bent in tubular form, the edges of the metal being broughttogether and extended in contact into or beyond the center of the tube for the purpose of forming a compound strip or structure to strengthen it, said parallel edges being permanently secured together, and a wood filler inserted in the tube and provided with-a groove to receive the compound strip or strengthenin g structure, substantially as and for the purpose set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JAMES L. SMITH.

Witnesses:

'1. E. HoY'r, J. F. MUNSELL. 

